Home / 113,883.20-170,897.70-66,498.20

Finding the Fourth Proportional to 113,883.20, 170,897.70 and 66,498.20

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Solution

The fourth proportional to 113,883.20, 170,897.70 and 66,498.20 is: 99,789.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,883.20 : 170,897.70 = 66,498.20 : x
  2. Step 2: Convert to fraction form
    113,883.20/170,897.70 = 66,498.20/x
  3. Step 3: Cross multiply
    113,883.20x = 170,897.70 × 66,498.20
  4. Step 4: Simplify right side
    113,883.20x = 11,364,389,434.14
  5. Step 5: Solve for x
    x = 11,364,389,434.14/113,883.20
  6. Step 6: Final answer
    x = 99,789.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.